check for existing fields when setting/updating tablelisting-columns

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

lib/tablelisting/admin/tablelisting.domains.php

@@ -29,11 +29,14 @@ use Froxlor\UI\Callbacks\Style;
 use Froxlor\UI\Callbacks\Text;
 use Froxlor\UI\Listing;
 
+// used outside scope variables
+$customerCollectionCount = !is_null($customerCollection ?? null) ? $customerCollection->count() : 0;
+
 return [
 	'domain_list' => [
 		'title' => lng('admin.domains'),
 		'icon' => 'fa-solid fa-globe',
-		'empty_msg' => $customerCollection->count() == 0 ? lng('admin.domain_nocustomeraddingavailable') : '',
+		'empty_msg' => $customerCollectionCount == 0 ? lng('admin.domain_nocustomeraddingavailable') : '',
 		'self_overview' => ['section' => 'domains', 'page' => 'domains'],
 		'default_sorting' => ['d.domain_ace' => 'asc'],
 		'columns' => [

lib/tablelisting/customer/tablelisting.htaccess.php

@@ -27,6 +27,9 @@ use Froxlor\UI\Callbacks\Ftp;
 use Froxlor\UI\Callbacks\Text;
 use Froxlor\UI\Listing;
 
+// used outside scope variables
+$cperlenabled = $cperlenabled ?? false;
+
 return [
 	'htaccess_list' => [
 		'title' => lng('menue.extras.pathoptions'),

lib/tablelisting/customer/tablelisting.mysqls.php

@@ -27,6 +27,9 @@ use Froxlor\UI\Callbacks\Mysql;
 use Froxlor\UI\Callbacks\Text;
 use Froxlor\UI\Listing;
 
+// used outside scope variables
+$multiple_mysqlservers = $multiple_mysqlservers ?? false;
+
 return [
 	'mysql_list' => [
 		'title' => lng('menue.mysql.databases'),

lib/tablelisting/tablelisting.dns.php

@@ -27,6 +27,10 @@ use Froxlor\UI\Callbacks\Dns;
 use Froxlor\UI\Callbacks\Text;
 use Froxlor\UI\Listing;
 
+// used outside scope variables
+$domain = $domain ?? '';
+$domain_id = $domain_id ?? '';
+
 return [
 	'dns_list' => [
 		'title' => 'DNS Entries',